Home / 121,030.20-181,545.30-109,366.20

Finding the Fourth Proportional to 121,030.20, 181,545.30 and 109,366.20

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Solution

The fourth proportional to 121,030.20, 181,545.30 and 109,366.20 is: 164,049.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,030.20 : 181,545.30 = 109,366.20 : x
  2. Step 2: Convert to fraction form
    121,030.20/181,545.30 = 109,366.20/x
  3. Step 3: Cross multiply
    121,030.20x = 181,545.30 × 109,366.20
  4. Step 4: Simplify right side
    121,030.20x = 19,854,919,588.86
  5. Step 5: Solve for x
    x = 19,854,919,588.86/121,030.20
  6. Step 6: Final answer
    x = 164,049.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.